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[Mips] Add FileCheck to a test that just tested for a crash.

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I believe the generated code here can suffer from double rounding.
So I wanted to capture the existing codegen so we can make
decisions about how to fix it.
This commit is contained in:
Craig Topper 2020-01-14 18:19:54 -08:00
parent afe0b073a6
commit a25a7f9567
1 changed files with 20 additions and 1 deletions
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21
test/CodeGen/Mips/uitofp.ll
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@ -1,6 +1,25 @@
; RUN: llc -march=mips -mattr=+single-float < %s
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -march=mips -mattr=+single-float < %s | FileCheck %s
define void @f0() nounwind {
; CHECK-LABEL: f0:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: addiu $sp, $sp, -8
; CHECK-NEXT: addiu $1, $zero, 1
; CHECK-NEXT: sw $1, 4($sp)
; CHECK-NEXT: lui $1, %hi($CPI0_0)
; CHECK-NEXT: addiu $1, $1, %lo($CPI0_0)
; CHECK-NEXT: lw $2, 4($sp)
; CHECK-NEXT: srl $3, $2, 29
; CHECK-NEXT: andi $3, $3, 4
; CHECK-NEXT: addu $1, $1, $3
; CHECK-NEXT: lwc1 $f0, 0($1)
; CHECK-NEXT: mtc1 $2, $f1
; CHECK-NEXT: cvt.s.w $f1, $f1
; CHECK-NEXT: add.s $f0, $f1, $f0
; CHECK-NEXT: swc1 $f0, 0($sp)
; CHECK-NEXT: jr $ra
; CHECK-NEXT: addiu $sp, $sp, 8
entry:
%b = alloca i32, align 4
%a = alloca float, align 4